Why does stainless steel rust?

Stainless steel will rust because stainless steel in the chlorine ion environment, will corrode quickly.

The alloy elements in stainless steel are not dissolved into the matrix, resulting in low alloy content in the matrix structure, poor corrosion resistance, and there is no titanium and niobium materials, so there will be a tendency of intergranular corrosion, and low carbon content will also lead to intergranular corrosion of stainless steel.

Stainless steel deep processing or processing products after grinding, in the surface of the product line or point-like concave mark defects. And stainless steel molding products in grinding or other conditions, the surface will produce a shape like orange peel phenomenon.

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